COPOLYMERS COMPRISING ESTER GROUPS AND USE THEREOF IN LUBRICANTS

摘要

201000398 Foreign countries- 45 -AbstractThe present invention relates to copolymers comprising ester groups and having at least one nonpolar segment P and at least one polar segment D, the polar segment D having at least 85 repeat units and the proportion by weight of dispersing repeat units in the polar segment Dbeing at least 30%, based on the weight of the polar segment D, wherein the copolymer comprising ester groups is obtainable by NMP (nitroxide mediated polymerization).The invention further relates to lubricant oils having improved friction properties and comprising said copolymers.